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Yes, those were not Facebook Ads, but actually promoted Facebook posts, from within a Facebook Group.

Details here:
http://www.thedailybeast.com/30-batsht-crazy-mostly-racist-facebook-memes-the-russians-used-to-corrupt-your-mind

Those were not literal ADs. It's M5M nonsense.

I work in the advertisement industry and it's pure fake news that something like that can turn an election.